Grilled stuffed sole
Preheat the grill. Heat the oil and butter in a frying pan until it just begins to foam. Add the onion and garlic to the frying pan, and cook, stirring, for 5 minutes, or until just softened.
To make the stuffing, mix together the tomatoes, thyme, breadcrumbs and lemon juice in a bowl, then season with salt and pepper.
Add the stuffing mixture to the pan, and stir to mix.
Using a sharp knife, pare the skin from the bone inside the gut hole of the fish to make a pocket. Spoon the stuffing into the pocket.
Cook the fish, under the grill, for 6 minutes on either side, or until golden brown. Transfer to serving plates, garnish with lemon wedges and serve immediately